Shop › RUGER AM RIMFIRE LOW COMB/STD PULL RUGER AM RIMFIRE LOW COMB/STD PULL $21.95 Ruger Stock Adapter, Fits Ruger American Rimfire, 10/22 and any Ruger rifle w/the Modular Stock System, Low Comb/Standard Pull, Black 90431 Quantity: Add To Cart Added! Ruger Stock Adapter, Fits Ruger American Rimfire, 10/22 and any Ruger rifle w/the Modular Stock System, Low Comb/Standard Pull, Black 90431